| 000 -LEADER |
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| fixed length control field |
02052nab a22001817a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20230114095126.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
230114b ||||| |||| 00| 0 eng d |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
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| Preferred name for the person |
Doliente, Stephen S. |
| Relator term |
author |
| 245 10 - TITLE STATEMENT |
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| Title |
Enhance colloidal stability of Al₂O₃-water nanofluids using a lauryl sulfate-based surface-active ionic liquid as dispersant |
| 264 #4 - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
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| Date of publication, distribution, etc |
2018 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc |
originally intended as alternative thermal fluids, nanofluids or nanosolid-liquid composites now have other emerging industrial applications. However, nanofluids' long-term colloidal stability must be further develop. In this original research, a halogen-free, low cost alkyl sulfate-based surface-active ionic liquid, 1-hexyl-3methylimidazolium lauryl sulfate ([HMIM]LS) was proposed as a dispersant for Al₂O₃-water nanofluids to enhance its colloidal stability. Colloidal stability of Al₂O₃, nanoparticles dispersed in [HMIM]LS aqueous solution was monitored for one week using UV-vis spectroscopy, zeta potential measurement and particles size distribution. From UV-vis spectroscopy, absorbance of the nanofluid with [HMIM]LS was consistently higher than the controls even until day 7 by a factor of 38. The zeta potential of the nanofluid with [HMIM]LS became more negative charged from -19.2 mV to -36.7 mV on day 0 and day 7. In spite of these modest values attributed to the absorbed IL layer on the nanoparticle surface, these results supported the double layer micellar stabilization mechanism. Particle size distribution also corroborated with the absorbance and zeta potential results by showing that larger-sized particles settle slower in the nanofluid with [HMIM]LS compared to the controls. These results showed that [HMIM]LS was an effective dispersant for Al₂O₃-water nanofluids. |
| 650 #o - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Nanofluids |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Postrado, Glaiza T. |
| Relator term |
author |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Arco, Susan D. |
| Relator term |
author |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
De Leon, Rizalinda L. |
| Relator term |
author |
| 773 ## - HOST ITEM ENTRY |
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| Title |
Philippine Engineering Journal |
| Relationship information |
vol. 39, no. 2: (December 2018), pages 1-16 |
| 942 ## - ADDED ENTRY ELEMENTS |
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| Source of classification or shelving scheme |
|
| Item type |
JOURNAL ARTICLE |